Snake oil. Back in the day when engines were dirty air pumps and saw hard use maybe. The PCV system back then was archaic. With now a days technology I haven't been sold on this gimmick. Breaking into a system to install another obstruction in my mind can or does create ancillary problems. No amount of salesman write ups will convince me. This would have been a great Mythbusters episode.
Pavement princesses need all the cool guy stuff...not mine.
Mine is a LT and has driver side fatass/over lifted assist handle. Hardly use it because I am not a fatass nor is my truck 10 feet off the dirt but it is there.